It is an expectation of all elementary teachers that they will be able to demonstrate that they are
competent to use and teach basic mathematics appropriate to elementary aged children. 
The links that follow list some of those basic skills and allow you to review and practice
those concepts and skills in preparation for PRAXIS 1 and the Mathematical Competency test.

The following areas are covered on these tests and you should review and practice these skills
and competency areas.  Many of these sites have been designed for elementary aged children, but
adults often find them useful to review simple concepts.
A good place to start is review all of the basic skills on a grade by grade practice site: IXL

A practice test is available by downloading this link:  Math Competency Test Sample Problems

Here are some review sheets that go over these concepts.
Decimal Concepts
Ratio, Percents & Decimal Concepts
Fractions Multiplication and Division
Reduction of Fractions, LCD, LCM and comparison of fractions

After you have taken the test you may find the following links helpful with any weak areas that the
Sample problems helped you to uncover.

1.  Number Concepts - Place Value and Value  

• AAA Math
• Links Learning
• ToonUniversity

2.  Number Concepts - Greater Than or Less Than

• Math is fun
• Ask Dr. Math
• SuperKids

3.  Number Concepts - Addition and Subtraction of Whole Numbers

• Cool Math 4 Kids
• AAA Math
• About.com:Math

4.  Percent

• http://www.themathpage.com/Arith/multiply-by-powers-of-10-2.htm
• 
  
• Writing Fractions as Percents:
  
  • http://www.mathgoodies.com/lessons/vol4/fractions_to_percents.html

5.  Decimals
       Decimal Fact sheets -- review the basic ideas behind decimals.  Downloads a PDF file.

• http://www.mathgoodies.com/lessons/toc_vol12.html

• http://www.themathpage.com/Arith/add-whole-numbers-add-decimals.htm

6.  Common Fractions, Proper Fractions, Mixed Numbers, Improper Fractions

• http://www.themathpage.com/Arith/fractions.htm

7.  Ratio and Proportion:

• http://www.themathpage.com/Arith/ratio-and-proportion_1.htm
• http://www.themathpage.com/Arith/ratio-and-proportion_2.htm

BBC Number skills:  fractions, decimals, percents

• http://www.bbc.co.uk/skillswise/numbers/fractiondecimalpercentage/